Motion Vectors not rendering

I’m having issues getting the Motion Vectors to render out of the Movie render que. I’ve watched 4 different tutorials with more or less the same workflow.
-Make sure the plugin Movie Render Queue Additional Render Passes is checked
-Check the View Mode/Visualization Buffer/Velocity shows some kind of movement
-Sequencer is set to render scene
-Movie Render Queue
-EXR Seq
-In deferred rendering enable the wanted Additional Post Process Material
-Add a Anti-aliasing
-render local
It goes though the render process but at lightning speed and saves zero frames.
I can render my backplates and stencil layers with zero issue. With Post Process Materials I’m not sure were I’m going wrong.

A little update. The addition post process materials seem to work in some past projects and other not. Not sure what is causing that. The ones that work. When I bring them into AE the end result doesn’t seem to be that useful. It would be great to get this working.

Im having the same issue, Normally I always got the motion vectors to work, but one day stopped working and all my pass is always the same yellow tone

Im using 5.1.1